This was super-dooper easy to make, and fun, and I now have a new fave PJ set which is always a total WIN! I used a vintage fabric my grandmother gave me (I have a tonne of this and it's a lovely light-weight cotton but not too light that it's a pain to sew)I drafted the knickers for my set to my own measurements but have found a cool looking freebie (yey) pattern here: http://www.madalynne.com/amerson-the-details-pattern